BUILDING SYSTEM OF UNDERGROUND STRUCTURE

摘要

[purpose];A cost folding formwork mold capable of replacing parts without making a plate and a frame twist when making a formwork, a grooved tie that is easy to assemble and disassemble the formwork, and a fixation and settlement work that is easy to fix This paper deals with the construction system of underground structures with paved concrete structures using square molds.;[Configuration];The transverse member 11a and the vertical member 11b or the reinforcing member 19 are arranged so as to be perpendicular to each other and each connecting portion is connected to the corner connection port 12 to form the frame 11. The front surface of the frame 11 A formwork (10) in which the plate (17) is attached to the binding opening (16) in a non-feeding manner; The bolt 22a in the cone 22 attached to both ends of the spacer 21 is embedded so as not to protrude outward and the relay nut 23 having the bolt 23a integrally formed on the outer surface thereof is fastened to the bolt 22a A groove tie 20 in which a tie bolt 25 with a support 24 is fastened to the bolt 23a of the relay nut 23; The bottom surface 32a is tapered in the reverse direction and the outer peripheral surface 32b is tapered in the circumferential direction by a tapered circumferential groove 31a, And a suspending re-fixation port 30 in which the jaw 32 is placed and an outer cylinder 33 having a side entrance 33a and a tapered inner surface 33b is formed by partially covering the circumferential wall, It is a building system for underground concrete structures underground.